    int factorial(int n) {
        if (n <= 1) {
            return 1;
        }
        return n * factorial(n - 1);
    }

    int fibonacci(int n) {
        if (n <= 0) {
            return 0;
        }
        if (n == 1) {
            return 1;
        }
        return fibonacci(n - 1) + fibonacci(n - 2);
    }

    int gcd(int a, int b) {
        if (b == 0) {
            return a;
        }
        return gcd(b, a % b);
    }

    int is_prime(int n) {
        if (n <= 1) {
            return 0;
        }
        if (n <= 3) {
            return 1;
        }
        if (n % 2 == 0 || n % 3 == 0) {
            return 0;
        }

        int i = 5;
        while (i * i <= n) {
            if (n % i == 0 || n % (i + 2) == 0) {
                return 0;
            }
            i = i + 6;
        }
        return 1;
    }

    int main() {
        int a = -124;
        int b = -512;
        int c = 256;
        int d = 1000;

        int expr1 = ((a + b) * c + (d * a)) / ((b + c) % (a + -d + 2048) + 1) + (-a * -b * +c * (d - +2 - -c));

        int x = -512;
        int y = 512;
        int z = 100;

        int expr2 = 0;
        if ((x > y) && ((z + 1) == 1)) {
            expr2 = 1;
        }

        int expr3 = 0;
        if ((x < y) || ((z + 2) == 2)) {
            expr3 = 1;
        }

        int expr4 = 0;
        if (!((x > 10 && y < 20) || (z > 30 && x < 40)) && (y > 50 || x < 60)) {
            expr4 = 1;
        }

        int n1 = 7;
        int n2 = 8;
        int n3 = 9;

        int expr5 = factorial(gcd(, n3 % 12)) + fibonacci((n1 % 10) + 2);

        int max_val = 0;
        if (n1 > n2 && n1 > n3) {
            max_val = n1;
        } else if (n2 > n1 && n2 > n3) {
            max_val = n2;
        } else {
            max_val = n3;
        }

        int sum = 0;
        int i = 1;
        while (i <= 15) {
            if (i % 2 == 0) {
                sum = sum + i * i;
            } else if (i % 4 == 0) {
                sum = sum + i * i * i;
            } else {
                sum = sum + i;
            }
            i = i + 1;
        }

        int expr6 = 0;
        i = 1;
        while (i <= 7) {
            int j = 1;
            int term = 1;
            while (j <= i) {
                term = term * j;
                j = j + 1;
            }
            expr6 = expr6 + term;
            i = i + 1;
        }

        int expr7 = 0;
        if (is_prime(n1)) {
            if (is_prime(n2)) {
                expr7 = n1 * n2;
            } else if (is_prime(n3)) {
                expr7 = n1 * n3;
            } else {
                expr7 = n1;
            }
        } else if (is_prime(n2)) {
            if (is_prime(n3)) {
                expr7 = n2 * n3;
            } else {
                expr7 = n2;
            }
        } else if (is_prime(n3)) {
            expr7 = n3;
        } else {
            expr7 = n1 + n2 + n3;
        }

        int expr8 = 0;
        int num = 2048;
        int bit_count = 0;

        while (num > 0) {
            if (num % 2 == 1) {
                bit_count = bit_count + 1;
            }
            num = num / 2;
        }

        int final_result = expr1 + expr2 + expr3 + expr4 + expr5 + max_val + sum + expr6 + expr7 + bit_count;

        return final_result;
    }
